Last refreshed 2026-10-19. Next refresh: weekly.
Why use DeepSeek V4 Flash 0731 on OpenRouter?
OpenRouter offers DeepSeek V4 Flash 0731 with pay-as-you-go pricing at $0.13/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare DeepSeek V4 Flash 0731 across 4 providers to find the best fit for your use caseInput / 1M
$0.1298
Output / 1M
$0.3894
Cache
read $0.0041
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: deepseek/deepseek-v4-flash-0731Model ID
deepseek/deepseek-v4-flash-0731Request example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
deepseek/deepseek-v4-flash-0731.Gotchas
- Use provider model ID "deepseek/deepseek-v4-flash-0731", not the LLMReference slug "deepseek-v4-flash-0731".
Compare DeepSeek V4 Flash 0731 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $0.13 | $0.39 |
| Vercel AI Gateway | $0.08 | $0.15 |
| Together AI | $0.14 | $0.28 |
| Fireworks AI | — | — |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.13 |
| Output tokens | $0.39 |
Capabilities
Reasoning
About DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is the official (post-preview) DeepSeek V4 Flash release, launched on the DeepSeek API in public beta on 2026-07-31 with upgraded agent capabilities. DeepSeek says it keeps the same architecture and size as the April preview. MIT-licensed open weights are on Hugging Face as DeepSeek-V4-Flash-0731.
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Model Specs
Released2026-07-31
ArchitectureMixture of Experts